The answer will be B. Hope it help!
40 mph would be 120 miles in 3 hours (120/40)
80 mph is 120 miles in 1.5 hours(120/80)
3 - 1.5 = 1.5, not 3 hrs
Change the speed to 20 mph( 1/2 the speed) to double the hours.
20 mph = 6 hours(120/20)
40 mph = 3 hrs(120/40)
6 - 3 = 3 hours difference
9514 1404 393
Answer:
40 square feet
Step-by-step explanation:
The sum of horizontal lengths is 2+4+2 = 8 ft, so the bottom rectangular portion of the figure has an area of ...
A = bh = (8 ft)(3 ft) = 24 ft²
The top rectangular portion of the figure has an area of ...
A = bh = (4 ft)(4 ft) = 16 ft²
Then the total area of the figure is ...
24 ft² +16 ft² = 40 ft² . . . . area of the figure
Depending on where the counting starts, we can establish a set of odd numbers or even numbers. If we start with odd numbers, skipping one every time gives a set of odd numbers, and so forth with even.
We know: The sum of the angles of each quadrilateral is 360°.
Therefore we have equation:
x + 3x + 4x + 2x = 360
10x = 360 |:10
x = 36
